353 lines
17 KiB
C#
353 lines
17 KiB
C#
/***********************************************************************
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* Project: CoreCms
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* ProjectName: 核心内容管理系统
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* Web: https://www.corecms.net
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* Author: 大灰灰
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* Email: jianweie@163.com
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* CreateTime: 2021/1/31 21:45:10
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* Description: 暂无
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***********************************************************************/
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using System;
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using System.Threading.Tasks;
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using CoreCms.Net.Configuration;
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using CoreCms.Net.IRepository;
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using CoreCms.Net.IRepository.UnitOfWork;
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using CoreCms.Net.IServices;
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using CoreCms.Net.Model.Entities;
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using CoreCms.Net.Model.ViewModels.DTO;
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using CoreCms.Net.Utility.Extensions;
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using Newtonsoft.Json;
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using Newtonsoft.Json.Linq;
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namespace CoreCms.Net.Services
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{
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/// <summary>
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/// 促销结果表 接口实现
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/// </summary>
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public class CoreCmsPromotionResultServices : BaseServices<CoreCmsPromotionResult>, ICoreCmsPromotionResultServices
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{
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private readonly ICoreCmsPromotionResultRepository _dal;
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private ICoreCmsPromotionConditionServices _promotionConditionServices;
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private readonly IUnitOfWork _unitOfWork;
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public CoreCmsPromotionResultServices(IUnitOfWork unitOfWork, ICoreCmsPromotionResultRepository dal, ICoreCmsPromotionConditionServices promotionConditionServices)
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{
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this._dal = dal;
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base.BaseDal = dal;
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_unitOfWork = unitOfWork;
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_promotionConditionServices = promotionConditionServices;
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}
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//去计算结果
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public async Task<bool> toResult(CoreCmsPromotionResult resultInfo, CartDto cart,
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CoreCmsPromotion promotionInfo)
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{
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if (string.IsNullOrEmpty(resultInfo.parameters)) return false;
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var resultType = SystemSettingDictionary.GetPromotionResultType();
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var resultModel = resultType.Find(p => p.sKey == resultInfo.code);
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if (resultModel != null)
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{
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JObject parameters = (JObject)JsonConvert.DeserializeObject(resultInfo.parameters);
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//如果是订单促销就直接去判断促销条件，如果是商品促销，就循环订单明细
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if (resultModel.sValue == "goods")
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{
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var isUsed = false;
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foreach (var item in cart.list)
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{
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var type = await _promotionConditionServices.goods_check(promotionInfo.id, (int)item.products.goodsId, item.nums);
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if (type == 2)
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{
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//到这里就说明此商品信息满足促销商品促销信息的条件，去计算结果
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//注意，在明细上面，就不细分促销的种类了，都放到一个上面，在订单上面才细分
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decimal promotionModel = 0;
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if (isUsed == false)
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{
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switch (resultInfo.code)
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{
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case "GOODS_REDUCE":
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promotionModel = result_GOODS_REDUCE(parameters, item, promotionInfo);
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break;
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case "GOODS_DISCOUNT":
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promotionModel = result_GOODS_DISCOUNT(parameters, item, promotionInfo);
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break;
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case "GOODS_ONE_PRICE":
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promotionModel = result_GOODS_ONE_PRICE(parameters, item, promotionInfo);
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break;
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case "GOODS_HALF_PRICE": //todo 指定商品每第几件减指定金额
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promotionModel = result_GOODS_HALF_PRICE(parameters, item, promotionInfo);
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break;
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default:
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promotionModel = 0;
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break;
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}
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}
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if (item.isSelect)
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{
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switch (promotionInfo.type)
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{
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case (int)GlobalEnumVars.PromotionType.Promotion:
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//设置总的商品促销金额
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cart.goodsPromotionMoney = Math.Round(cart.goodsPromotionMoney + promotionModel, 2);
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//设置总的价格
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cart.amount = Math.Round(cart.amount - promotionModel, 2);
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break;
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case (int)GlobalEnumVars.PromotionType.Coupon:
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if (isUsed)
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{
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item.products.promotionList.Remove(promotionInfo.id);
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}
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else
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{
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//优惠券促销金额
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cart.couponPromotionMoney = Math.Round(cart.couponPromotionMoney + promotionModel, 2);
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//设置总的价格
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cart.amount = Math.Round(cart.amount - promotionModel, 2);
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//跳出下级处理
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isUsed = true;
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}
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break;
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case (int)GlobalEnumVars.PromotionType.Group:
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//团购
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cart.goodsPromotionMoney = Math.Round(cart.goodsPromotionMoney + promotionModel, 2);
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//设置总的价格
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cart.amount = Math.Round(cart.amount - promotionModel, 2);
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break;
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case (int)GlobalEnumVars.PromotionType.Seckill:
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//秒杀
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cart.goodsPromotionMoney = Math.Round(cart.goodsPromotionMoney + promotionModel, 2);
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//设置总的价格
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cart.amount = Math.Round(cart.amount - promotionModel, 2);
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break;
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}
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}
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}
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}
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//商品促销可能做的比较狠，导致订单价格为负数了，这里判断一下，如果订单价格小于0了，就是0了
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cart.amount = cart.amount > 0 ? cart.amount : 0;
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}
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else
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{
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if (resultInfo.code == "ORDER_DISCOUNT")
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{
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result_ORDER_DISCOUNT(parameters, cart, promotionInfo);
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}
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else if (resultInfo.code == "ORDER_REDUCE")
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{
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result_ORDER_REDUCE(parameters, cart, promotionInfo);
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}
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}
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}
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return true;
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}
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/// <summary>
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/// 订单减固定金额
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/// </summary>
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/// <param name="parameters"></param>
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/// <param name="cart"></param>
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/// <param name="promotionInfo"></param>
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/// <returns></returns>
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public bool result_ORDER_REDUCE(JObject parameters, CartDto cart, CoreCmsPromotion promotionInfo)
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{
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if (!parameters.ContainsKey("money")) return true;
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//判断极端情况，减的太多，超过购物车的总金额了，那么就最多减到0
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if (cart.amount < (decimal)parameters["money"])
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{
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parameters["money"] = cart.amount;
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}
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//总价格修改
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cart.amount -= (decimal)parameters["money"];
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switch (promotionInfo.type)
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{
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case (int)GlobalEnumVars.PromotionType.Promotion:
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//总促销修改
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cart.orderPromotionMoney += (decimal)parameters["money"];
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//设置促销列表
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if (cart.promotionList.ContainsKey(promotionInfo.id))
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{
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cart.promotionList[promotionInfo.id].name = promotionInfo.name;
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cart.promotionList[promotionInfo.id].type = 2;
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}
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else
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{
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cart.promotionList.Add(promotionInfo.id, new WxNameTypeDto() { name = promotionInfo.name, type = 2 });
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}
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break;
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case (int)GlobalEnumVars.PromotionType.Coupon:
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//优惠券促销金额
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cart.couponPromotionMoney += (decimal)parameters["money"];
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break;
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}
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return true;
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}
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/// <summary>
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/// 订单打X折
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/// </summary>
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/// <param name="parameters"></param>
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/// <param name="cart"></param>
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/// <param name="promotionInfo"></param>
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/// <returns></returns>
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public bool result_ORDER_DISCOUNT(JObject parameters, CartDto cart, CoreCmsPromotion promotionInfo)
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{
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//if (parameters.Property("discount") == null) return true;
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//var objDiscount = Convert.ToInt32(parameters["discount"]);
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if (!parameters.ContainsKey("discount")) return true;
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var objDiscount = parameters["discount"].ObjectToDecimal(0);
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//判断参数是否设置的正确
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if (objDiscount >= 10 || objDiscount <= 0)
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{
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return true;
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}
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var orderAmount = cart.amount;
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//总价格修改
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cart.amount = Math.Round(Math.Round(Math.Round(cart.amount * objDiscount, 3) * 10, 2) / 100, 2);
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switch (promotionInfo.type)
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{
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case (int)GlobalEnumVars.PromotionType.Promotion:
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//总促销修改
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cart.orderPromotionMoney = Math.Round(cart.orderPromotionMoney + Math.Round(orderAmount - cart.amount, 2), 2);
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//设置促销列表
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if (cart.promotionList.ContainsKey(promotionInfo.id))
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{
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cart.promotionList[promotionInfo.id].name = promotionInfo.name;
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cart.promotionList[promotionInfo.id].type = 2;
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}
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else
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{
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cart.promotionList.Add(promotionInfo.id, new WxNameTypeDto() { name = promotionInfo.name, type = 2 });
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}
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break;
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case (int)GlobalEnumVars.PromotionType.Coupon:
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//优惠券促销金额
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cart.couponPromotionMoney = Math.Round(cart.couponPromotionMoney + Math.Round(orderAmount - cart.amount, 2), 2);
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break;
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}
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return true;
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}
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/// <summary>
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/// 指定商品减固定金额
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/// </summary>
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/// <param name="parameters"></param>
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/// <param name="cartProducts"></param>
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/// <param name="promotionInfo"></param>
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/// <returns></returns>
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public decimal result_GOODS_REDUCE(JObject parameters, CartProducts cartProducts, CoreCmsPromotion promotionInfo)
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{
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if (!parameters.ContainsKey("money")) return 0;
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var objMoney = parameters["money"].ObjectToDecimal(0);
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decimal promotionMoney = 0;
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//判断极端情况，减的太多，超过商品单价了，那么就最多减到0
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if (cartProducts.products.price < objMoney)
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{
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objMoney = cartProducts.products.price;
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}
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cartProducts.products.price = Math.Round(cartProducts.products.price - objMoney, 2);
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//此次商品促销一共优惠了多少钱
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promotionMoney = promotionInfo.type == (int)GlobalEnumVars.PromotionType.Coupon ? objMoney : Math.Round(cartProducts.nums * objMoney, 2);
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//设置商品优惠总金额
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cartProducts.products.promotionAmount = Math.Round(cartProducts.products.promotionAmount + objMoney, 2);
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//设置商品的实际销售金额（单品）
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cartProducts.products.amount = Math.Round(cartProducts.products.amount - promotionMoney, 2);
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return promotionMoney;
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}
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/// <summary>
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/// 指定商品打X折
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/// </summary>
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/// <param name="parameters"></param>
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/// <param name="cartProducts"></param>
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/// <param name="promotionInfo"></param>
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/// <returns></returns>
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public decimal result_GOODS_DISCOUNT(JObject parameters, CartProducts cartProducts, CoreCmsPromotion promotionInfo)
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{
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if (!parameters.ContainsKey("discount")) return 0;
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var objDiscount = parameters["discount"].ObjectToDecimal(0);
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decimal promotionMoney = 0;
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decimal goodsPrice = cartProducts.products.price;
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cartProducts.products.price = Math.Round(Math.Round(Math.Round(cartProducts.products.price * objDiscount, 3) * 10, 2) / 100, 2);
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//单品优惠的金额
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var pmoney = Math.Round(goodsPrice - cartProducts.products.price, 2);
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promotionMoney = promotionInfo.type == (int)GlobalEnumVars.PromotionType.Coupon ? pmoney : Math.Round(cartProducts.nums * pmoney, 2);
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//设置商品优惠总金额
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cartProducts.products.promotionAmount = Math.Round(cartProducts.products.promotionAmount + promotionMoney, 2);
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//设置商品的实际销售总金额
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cartProducts.products.amount = Math.Round(cartProducts.products.amount - promotionMoney, 2);
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return promotionMoney;
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}
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//商品一口价
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public decimal result_GOODS_ONE_PRICE(JObject parameters, CartProducts cartProducts, CoreCmsPromotion promotionInfo)
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{
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if (!parameters.ContainsKey("money")) return 0;
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var objMoney = parameters["money"].ObjectToDecimal(0);
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//如果一口价比商品价格高，那么就不执行了
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decimal promotionMoney = 0;
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if (cartProducts.products.price <= objMoney)
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{
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return promotionMoney;
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}
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var goodsPrice = (decimal)cartProducts.products.price;
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cartProducts.products.price = Math.Round(objMoney, 2);
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//单品优惠的金额
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var pmoney = Math.Round(goodsPrice - cartProducts.products.price, 2);
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promotionMoney = promotionInfo.type == (int)GlobalEnumVars.PromotionType.Coupon ? pmoney : Math.Round(cartProducts.nums * pmoney, 2);
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//设置商品优惠总金额
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cartProducts.products.promotionAmount = Math.Round(cartProducts.products.promotionAmount + promotionMoney, 2);
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//设置商品的实际销售总金额
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cartProducts.products.amount = Math.Round(cartProducts.products.amount - promotionMoney, 2);
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return promotionMoney;
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}
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//商品第N个半价
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public decimal result_GOODS_HALF_PRICE(JObject parameters, CartProducts cartProducts, CoreCmsPromotion promotionInfo)
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{
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if (!parameters.ContainsKey("money")) return 0;
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var objMoney = parameters["money"].ObjectToDecimal(0);
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//如果一口价比商品价格高，那么就不执行了
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decimal promotionMoney = 0;
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if (cartProducts.products.price <= objMoney)
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{
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return promotionMoney;
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}
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//第几个优惠
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var num = parameters["num"].ObjectToInt(0);
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//购买的数量
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var buyNum = cartProducts.nums;
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//取整数，保证满足了，才优惠 ，比如设置 原价 10 第2个 减少5，购买5个产品的时候，实际只优惠2个产品的价格
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var promotionNum = buyNum / num;
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var pmoney = Math.Round((decimal)promotionNum * objMoney / buyNum, 2); //单品优惠的金额
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var goodsPrice = (decimal)cartProducts.products.price;
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cartProducts.products.price = goodsPrice - pmoney; //优惠后的平均价格
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promotionMoney = Math.Round(cartProducts.nums * pmoney, 2);//优惠金额
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//设置商品优惠总金额
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cartProducts.products.promotionAmount = Math.Round(cartProducts.products.promotionAmount + promotionMoney, 2);
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//设置商品的实际销售总金额
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cartProducts.products.amount = Math.Round(cartProducts.products.amount - promotionMoney, 2);
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return promotionMoney;
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}
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}
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}
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